Piston energy exchanger
A transducer and piston-type technology, which is applied in the field of acoustic sensors, can solve the problems of reduced efficiency and small amplitude of the piston surface, etc., and achieve the effect of improving work efficiency and increasing radiation capacity
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Embodiment 1
[0020] A transducer shell consisting of an asymmetric flexural casing 1, a transition beam 3 and a circular piston radiation head 2 is made of stainless steel. Such as figure 1 As shown, the asymmetric flexural shell 1 is a short tube with an elliptical cross-section. Both ends of the tube are not closed. The wall thickness of 10 is 5 times of upper wall 9. At the center of the upper wall 9 , the upper wall 9 is rigidly connected to one end of the transition beam 3 , and the other end of the transition beam 3 is rigidly connected to an end surface of the circular piston radiation head 2 . The inner wall of the asymmetric flextensional housing 1 has an inward semicircular protrusion 11 on the left and right sides, and the driving element and the two rigid transition blocks 7 at both ends form the assembly unit of the transducer inner cavity. The length dimension is 0.6 mm larger than the distance between the two protrusions 11 . When the transducer is assembled, the distance...
Embodiment 2
[0024] In this embodiment, a piezoelectric ceramic stack 8 is used as a driving element. The piezoelectric ceramic stack 8 is formed by bonding rectangular piezoelectric ceramic sheets, and the ceramic sheets are connected in parallel in circuit form. The prestressing method of the piezoelectric ceramic stack 8 is the same as that of the first embodiment.
[0025] Other parts of this embodiment are identical to Embodiment 1.
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